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What are the stages of Intraocular Melanoma?

By  ,  National Institute of Health
Jan 09, 2013
4.8 / 5(4 Ratings)

After intraocular melanoma has been diagnosed, tests are done to find out if cancer cells have spread within the eye or to other parts of the body.


The process used to find out if cancer has spread within the eye or to other parts of the body is called staging. The information gathered from the staging process determines the stage of the disease. It is important to know the stage in order to plan treatment. The following tests and procedures may be used in the staging process:


Gonioscopy


An examination of the front part of the eye between the cornea and iris. A special instrument is used to check for blockages in the area where fluid drains out of the eye.

 

Ultrasound biomicroscopy


A procedure that uses high-energy sound waves to measure small tumors. The amount of detail is about the same as that of a low-power microscope. Tumors can be examined this way for shape, thickness, and signs that they have spread to nearby tissue.

 

Blood chemistry studies


A procedure in which a blood sample is checked to measure the amounts of certain substances released into the blood by organs and tissues in the body. An unusual (higher or lower than normal) amount of a substance can be a sign of disease in the organ or tissue that makes it.

 

Liver function tests


A procedure in which a blood sample is checked to measure the amounts of certain substances released into the blood by the liver. A higher than normal amount of a substance can be a sign the cancer has spread to the liver.

 

Ultrasound exam


A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs, such as the liver, and make echoes. The echoes form a picture of body tissues called a sonogram.

 

Chest x-ray


An x-ray of the organs and bones inside the chest. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body.

 

CT scan (CAT scan)


A procedure that makes a series of detailed pictures of areas inside the body, such as the liver or brain, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.


Sometimes pictures of the tumor are taken over a period of time and compared to see if the tumor has grown.


The following sizes are used to describe intraocular melanoma:


Small


The tumor is at least 5 millimeters in diameter and from 1 to 3 millimeters thick.


Medium

 

The tumor is less than 16 millimeters in diameter and from 2 to 10 millimeters thick.

Large


The tumor is at least 16 millimeters in diameter or more than 1...

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